Kasm allows to stream a workspace or any container. So I can install a desktop for a new emplyee, and stream it to them.

Differences between Linux container and virtual machine. Linux container uses the same kernel as the OS. There are two types of containers a system container (includes os and init system) like LXD and application container (no os no init system just one app and files it depends on the rest is from host os).

Containers vs. Serverless

Rancher is the equivalent of docker desktop